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fitting implicit non-linear equation
I question the physicality of your fitting equation: Since you have a log on the left-hand side, and your data includes X4(1)...

presque 11 ans il y a | 0

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how to find slop of a curve at a point?
There are several ways to compute the derivative numerically, cf. help diff but this can be noisy, and isn't terribly pr...

presque 11 ans il y a | 0

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scatterplot shows RowIDs as points and points as a color map
Would something like this work? n = 30; % number of data points cmap = jet(n); % builtin colormap; could choose another....

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How to create a consolidated 'average' surface of three or more surfaces?
It's not entirely clear (to me) what you want, but you can simply take the avg of z and plot it if that's what you want: %%...

plus de 11 ans il y a | 2

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How can I plot x y and corresponding "z" point values discretely ( without creating surf or meshgrid or stem3) in 2d color coded image?
Unless I'm misunderstanding your data, it seems like "scatter" should do what you want (just use your z-value of damage as the c...

plus de 11 ans il y a | 0

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How to adapt the color of points on a sphere if they are on frontside or backside of the sphere ?
I don't remember which callback functions were available in R2008a, but the following should get you started. Essentially, it q...

plus de 11 ans il y a | 0

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Generating a minimal convex polygon
It seems like you've already eaten the computational cost of finding the 2-D convex hall (resulting in a convex n-gon). It soun...

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How to use data to plot a 2D image
I think this is an oft-requested feature that, to the best of my knowledge, still isn't available in Matlab. The workaround I u...

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Best fit of a surface
If you're just looking for a best fit plane (for some definition of 'best'), you can use the backslash operator, just like findi...

presque 12 ans il y a | 2

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